body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
header {
    background-color: #1e88e5;
    color: white;
    padding: 1rem;
    text-align: center;
}
h1 {
    margin: 0;
}
.content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}
.card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.vnc-container {
    height: 600px;
    border: 1px solid #ddd;
    border-radius: 4px;
}
#vnc-frame {
    width: 100%;
    height: 100%;
    border: none;
}
.btn {
    background-color: #1e88e5;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}
.btn:hover {
    background-color: #1565c0;
}